Gay Americans can now get married in the morning and then, in the afternoon, just for being gay, their employers can fire them. Is doing so legal? Up until last week, the answer was yes for Americans living in the 28 states without explicit bans on workplace sexual-orientation discrimination. But an important ruling from the Equal Employment Opportunity Commission (EEOC) means that courts in those states are now more likely to say that such discrimination is illegal, and that gay Americans...